I need to know what it takes to get the c.v. joints off of a 1991 ford probe GL i broke a craftsman 3/4 inch drive breaker bar in half trying to take it off. i have given up

 

Okay, you must be trying to remove the hub nut, right? Will if a 3/4" breaker bar cant do it, the old flame wrench (torch) can. How in the world could anybody break a 3/4' breaker bar (made in China?).
If you do have to torch the CV joint off, you probibly need to replace the hub bearings or maybe the hub.
Good luck, and let us know how it goes